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Analysis on Large-scale Cold Storage Freon Tank Pump Supply System Technology
People who design and build cold storage know that there are three methods for supplying liquid to the refrigeration system: direct liquid supply, gravity supply, and pump supply. The direct supply solution is suitable for small-scale refrigeration systems. Gravity supply is suitable for small and medium-sized refrigeration systems. The liquid is suitable for large-scale systems, especially for multi-storey building refrigeration systems. If it is a large-medium-sized cold storage tank pump selection method is naturally reasonable, but also cost-effective. Then what are the characteristics of the fluorine pump fluid supply? Today, let's discuss with Prosperous Xiaobian. (1) The evaporator has a high heat exchange efficiency and a good cooling effect. Refrigerant circulation quantity several times evaporator evaporation amount has enough wetting surface of evaporator, can exert heat transfer efficiency of evaporation area of ​​evaporator; refrigerant flows in circulation in evaporator, gas flows in the center Therefore, the heat transfer conditions of the refrigerant and the pipe wall surface are strengthened; and due to the scouring of a large number of refrigerants, the oil film is not easily formed on the evaporator pipe wall, and the bottom is also unlikely to accumulate oil dirt, so that the heat transfer coefficient of the pipe wall can be improved. Insufficient direct expansion of the liquid supply will cause the end of the aluminum tube to become superheated gas, which will not only reduce the utilization of the evaporation area, but also lead to the risk of coking of the lubricant due to the increased temperature of the refrigeration compressor discharge; Many, but also very easy to cause the wet compressor wet compressor, can not guarantee the safe operation of the refrigeration device, so in the end of the pipe in a part of the pipe is the flow of gas, rather than liquid. (2) Long-distance liquid supply can be guaranteed. With the mechanical action of the pump, some of the resistance losses in the system can be overcome and long-term supply of liquid can be achieved. (3) The system operation is simple and reliable, it is convenient for centralized control and automation, and the operating conditions of the refrigeration compressor are improved. The fluorine pump liquid supply refrigeration system can maintain the normal operation of the fluorine pump under the condition that the heat load of the warehouse does not fluctuate greatly and the fluorine fluid level is relatively stable, and does not require frequent adjustment work, and the cooling load in the system is The adjustment can be completed in the refrigerating machine room, and it is relatively easy for the refrigerating device to automatically control the valves in the warehouse without simultaneously adjusting the valves. The construction of cold storage should not only focus on quality, but also focus on safety. Although large-scale cold storage in foreign countries generally uses ammonia refrigeration, in China, due to the lack of awareness of safety issues, ammonia refrigeration accidents have emerged in an endless stream, especially in the later normal operation process. In this case, it is necessary to arouse our attention, and the fluorine pump liquid supply technology just meets the needs of large-scale cold storage, which can not only guarantee the cooling effect, but also guarantee the safety. Therefore, we must consider comprehensively the choice. If friends who want to build a cold storage can come in and see it, it will help you.